Home / 126,130.68-174,085.56-72,452.52

Finding the Fourth Proportional to 126,130.68, 174,085.56 and 72,452.52

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Solution

The fourth proportional to 126,130.68, 174,085.56 and 72,452.52 is: 99,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130.68 : 174,085.56 = 72,452.52 : x
  2. Step 2: Convert to fraction form
    126,130.68/174,085.56 = 72,452.52/x
  3. Step 3: Cross multiply
    126,130.68x = 174,085.56 × 72,452.52
  4. Step 4: Simplify right side
    126,130.68x = 12,612,937,517.61
  5. Step 5: Solve for x
    x = 12,612,937,517.61/126,130.68
  6. Step 6: Final answer
    x = 99,998.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.